Finding the Fourth Proportional to 9,337.50, 12,885.75 and 5,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,337.50 : 12,885.75 = 5,611.50 : x
2. Step 2: Convert to fraction form
   9,337.50/12,885.75 = 5,611.50/x
3. Step 3: Cross multiply
   9,337.50x = 12,885.75 × 5,611.50
4. Step 4: Simplify right side
   9,337.50x = 72,308,386.13
5. Step 5: Solve for x
   x = 72,308,386.13/9,337.50
6. Step 6: Final answer
   x = 7,743.87